Object reference not set to an instance of an object

[Chris]

I use the Rate Reminder control in my app, and I have been recently receiving the following stack traces. Seems to be affecting quite a fwe of my users (I use Crittercism for bug analytics).

Are you aware of this error? 

System.NullReferenceException - Object reference not set to an instance of an object

Stack Trace
_________________________________
0      at Telerik.Windows.Controls.RadWindow.TryOpen()
1      at Telerik.Windows.Controls.RadWindow.Open()
2      at Telerik.Windows.Controls.RadWindow.SyncOpenState()
3      at Telerik.Windows.Controls.RadWindow.OnIsOpenChanged(Boolean newValue, Boolean oldValue)
4      at Telerik.Windows.Controls.RadWindow.OnIsOpenChanged(Object sender, DependencyPropertyChangedEventArgs args)
5      at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
6      at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
7      at System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
8      at System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
9      at Telerik.Windows.Controls.RadMessageBox.InitWindow(RadModalWindow window, RadMessageBoxControl messageBox, HorizontalAlignment hAlignment, VerticalAlignment vAlignment)
10     at Telerik.Windows.Controls.RadMessageBox.ShowAsync(IEnumerable`1 buttonsContent, Object title, Object message, Object checkBoxContent, Boolean isCheckBoxChecked, Boolean vibrate, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment)
11     at Telerik.Windows.Controls.RadMessageBox.ShowAsync(Object title, MessageBoxButtons buttons, Object message, Object checkBoxContent, Boolean isCheckBoxChecked, Boolean vibrate, HorizontalAlignment horizontalAlignment, VerticalAlignment verticalAlignment)
12     at Telerik.Windows.Controls.Reminders.ReminderBase`1.<ShowReminderMessage>d__1.MoveNext()
13  --- End of stack trace from previous location where exception was thrown ---
14     at System.Runtime.CompilerServices.AsyncMethodBuilderCore.<ThrowAsync>b__0(Object state)

[Valentin.Stoychev]

Hello,

I'm closing this thread due to duplicate. Lets continue our research on the other thread.

Regards,
Valentin.Stoychev
Telerik